DSH 474 General conditions for the tests

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General conditions for the tests

4.12 & U3 N, f' R, E* ]

60335-1(ed.3)

% p; y1 d( k4 t$ c) dStandard: IEC 60335-1:1991, 3rd Ed.
, Y0 L1 r" ~. x7 G# ?; ~Sub clause: 4.12
6 D; \4 X2 J* ASheet No. DSH-474
/ K5 Y, `" G% XSubject: General conditions for the tests
. J' f4 P7 s/ I+ ~2 t, Y, J( wKey words: - supply voltage
Decision taken at the 40th CTL meeting 2003
* r0 x4 c8 i% R' L3 F4 HQuestion:
In the case of heating elements without appreciable positive temperature coefficient of
resistance, should the supply voltage be adjusted during performance of the test?
Rationale:
) E1 t& e) `* y* _& K1 B2 s6 TSee question.
Decision:
  w" _' u+ J& A+ b+ eThe voltage shall be continuously adjusted to obtain the intended input.

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